Folding device and heat dissipation apparatus

Abstract

A folding device and a heat dissipation apparatus, where the folding device includes a heat collection element, including a heat collection plate and a first shaft sleeve, where a first end of the heat collection plate is in contact with a heat source in a first folding part, and a second end of the heat collection plate is coupled to an outer wall of the first shaft sleeve, the first shaft sleeve is sleeved on a rotating shaft, and a third end of the cooling element is in contact with the rotating shaft, and a fourth end of the cooling element is in contact with a heat dissipation device in a second folding part.

What is claimed is: 
     
       1. A folding device comprising:
 a first folding part comprising a heat source; 
 a second folding part comprising a heat dissipation device; and 
 a heat dissipation apparatus comprising:
 a heat collection element comprising:
 a heat collection plate comprising:
 a first end coupled to the heat source; and 
 a second end; and 
 
 a first shaft sleeve comprising a first outer wall coupled to the second end; 
 
 a rotating shaft, wherein the first shaft sleeve is configured to sleeve on a first part on the rotating shaft; and 
 a cooling element comprising:
 a first cooling plate further comprising a third end coupled to the rotating shaft; 
 a fourth end coupled to the heat dissipation device; and 
 wherein the cooling element further comprises:
 a fifth end coupled to the rotating shaft; and 
 a sixth end coupled to the heat dissipation device. 
 
 
 
 
     
     
       2. The folding device of  claim 1 , wherein the first shaft sleeve further comprises a first inner wall, and wherein the heat dissipation apparatus further comprises a first thermally conductive lubricating material between the first inner wall and the rotating shaft. 
     
     
       3. The folding device of  claim 2 , wherein the heat dissipation apparatus further comprises:
 a first through hole disposed on the first shaft sleeve; and 
 a first sealing element configured to seal the first through hole. 
 
     
     
       4. The folding device of  claim 3 , wherein the heat dissipation apparatus further comprises a first sealing ring, wherein a first annular groove is disposed on the first part, and wherein the first sealing ring is located in the first annular groove. 
     
     
       5. The folding device of  claim 4 , wherein the heat dissipation apparatus further comprises:
 a second shaft sleeve sleeved on a second part on the rotating shaft other than the first part and comprising a second outer wall; and 
 a second cooling plate comprising:
 a fifth end coupled to the second outer wall; and 
 an sixth end coupled to the heat dissipation device. 
 
 
     
     
       6. The folding device of  claim 5 , wherein the second shaft sleeve further comprises a second inner wall coupled to the rotating shaft. 
     
     
       7. The folding device of  claim 6 , wherein a second thermally conductive lubricating material is added between the second inner wall and the rotating shaft. 
     
     
       8. The folding device of  claim 7 , wherein a second through hole is disposed on the second shaft sleeve, and wherein the heat dissipation apparatus further comprises a second sealing element configured to seal the second through hole. 
     
     
       9. The folding device of  claim 8 , wherein the heat dissipation apparatus further comprises a second sealing ring, wherein a second annular groove is disposed on the second part, and wherein the second sealing ring is located in the second annular groove. 
     
     
       10. The folding device of  claim 1 , wherein the first folding part further comprises a first housing, wherein a groove comprising a third inner wall is disposed on an inner side of the first housing, wherein a third through hole is disposed on the heat collection plate, and wherein the heat dissipation apparatus further comprises:
 a washer located between the inner side and the heat collection plate and comprising a fourth through hole; and 
 a screw comprising a rod part that passes through the third through hole and the fourth through hole and is threaded with the third inner wall. 
 
     
     
       11. The folding device of  claim 1 , wherein the heat dissipation apparatus further comprises two or more heat collection elements and two or more cooling elements. 
     
     
       12. The folding device of  claim 1 , wherein the heat dissipation apparatus further comprises two or more heat collection elements. 
     
     
       13. The folding device of  claim 1 , wherein the heat dissipation apparatus further comprises two or more cooling elements. 
     
     
       14. The folding device of  claim 1 , wherein a side surface of the cooling element is coupled to a folding edge in the second folding part, wherein the folding edge wraps the first outer wall and the rotating shaft and is configured to shield the first shaft sleeve and the rotating shaft when the first folding part and the second folding part are engaged. 
     
     
       15. The folding device of  claim 1 , wherein the cooling element comprises a ferrule located in a slot in the second folding part. 
     
     
       16. The folding device of  claim 1 , wherein a heat conductivity of each of the heat collection element, the rotating shaft, and the cooling element is greater than or equal to 120 watts (W)/(meters (m)·kelvin (K)). 
     
     
       17. A heat dissipation apparatus comprising:
 a heat collection element comprising:
 a heat collection plate comprising:
 a first end coupled to a heat source in a first folding part of a folding device; and 
 a second end; and 
 
 a first shaft sleeve comprising an outer wall coupled to the second end; 
 
 a rotating shaft, wherein the first shaft sleeve is sleeved on the rotating shaft; and 
 a cooling element comprising:
 a third end coupled to the rotating shaft; and
 a fourth end coupled to a heat dissipation device in a second folding part of the folding device; and 
 wherein the cooling element further comprises a first cooling plate further comprising:
 a fifth end coupled to the rotating shaft; and 
 a sixth end coupled to the heat dissipation device. 
 
 
 
 
     
     
       18. The heat dissipation apparatus of  claim 17 , wherein the first shaft sleeve further comprises an inner wall, and wherein the heat dissipation apparatus further comprises a thermally conductive lubricating material between the inner wall and the rotating shaft. 
     
     
       19. The heat dissipation apparatus of  claim 18 , further comprising:
 a through hole disposed on the first shaft sleeve; and 
 a sealing element configured to seal the through hole.